Delivery system with anchoring nosecone and method of delivery
AssigneeMedtronic, Inc.
InventorJason Quill
Life of this patent
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Abstract
A delivery device includes an inner shaft, an outer sheath, a nosecone, and a tether component. The outer sheath is slidably disposed over the inner shaft. The nosecone is removably coupled to the inner shaft. The nosecone includes a delivery configuration for delivery to a treatment site, a radially compressed configuration in which a portion of the nosecone is configured to traverse through a heart wall, and a radially expanded configuration in which an outer surface of the nosecone contacts an outer surface of the heart wall. The tether component includes a first end coupled to the nosecone. The nosecone is configured to plug a piercing in the heart wall when in the radially expanded configuration.
Claims20
A method of deploying a prosthesis at a site of a native valve, the method comprising the steps of:
- advancing a delivery system through the native valve and into a chamber of a heart, wherein the delivery system includes an outer sheath, a nosecone removably coupled to the delivery system, a prosthesis disposed within the outer sheath in a radially collapsed configuration, and a tether component having a first end non-removably coupled to the nosecone and a second end non-removably coupled to the prosthesis;
- advancing a portion of the nosecone through the wall of the heart with the nosecone in a radially compressed configuration;
- retracting the delivery system such that an outer surface of the nosecone contacts an outer surface of the heart wall and the nosecone expands to a radially expanded configuration;
- releasing the nosecone from the delivery system;
- retracting the delivery system until the tether component becomes taut;
- and
- retracting the outer sheath to release the prosthesis such that the prosthesis expands to a radially expanded configuration at the site of the native valve.
A method of deploying a prosthesis at a site of a native valve, the method comprising the steps of:
- advancing a delivery system through the native valve and into a chamber of a heart, wherein the delivery system includes a shaft, a nosecone removably coupled to a distal end of the shaft such that the nosecone forms a distal tip of the delivery system, a prosthesis disposed on a distal portion of the shaft in a radially collapsed configuration, and a tether component having a first end non-removably coupled to the nosecone and a second end non-removably coupled to the prosthesis;
- advancing a portion of the nosecone through the wall of the heart with the nosecone in a radially compressed configuration;
- expanding the nosecone to a radially expanded configuration and positioning the nosecone in the radially expanded configuration against an outer surface of the heart wall;
- releasing the nosecone from the shaft;
- retracting the delivery system until the tether component becomes taut;
- and
- deploying the prosthesis to a radially expanded configuration at the site of the native valve, wherein the prosthesis is deployed at a spaced apart location from the nosecone and the tether component extends between the prosthesis deployed at the site of the native valve and the nosecone positioned against the outer surface of the heart wall.
Dependencies are inferred from the claim text.